Aspire now brings you the ultimate in mod adaptability and flexibility. Introducing the new Puxos mod. It allows for use with three different battery types, an 18650, a 20700 or a 21700. The Puxos can also be used in various modes, allowing you to select between Wattage, Voltage, Bypass, CPS (C1/C2/C3), TC(Ni/Ti/SS316L) and TCR(M1/M2/M3).